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Andrews [41]
3 years ago
9

Why do the cells transformed with PUC18 and plasmid lux grow in the presence of ampicillin?

Biology
1 answer:
Fofino [41]3 years ago
3 0

Answer:

The bacterial cells transformed with PUC18 and plasmid lux grow in the presence of ampicillin, because the DNA of bacterial cells had incorporated parts of plasmid DNA and became ampicillin resistant.

Explanation:

The bacteria showing this property is mainly known as Escherichia coli (E. coli). These bacteria cells generally shows no growth in presence of antibiotic like ampicillin. Whereas when these cells are treated with PUC 18 and plasmid lux, then the bacterial DNA undergo certain transformation due to incorporation of strands of DNA of plasmid into them. This transformation make them resistance to ampicillin, when they are cultured in agar media with ampicillin in it.

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9. What are Rock-Forming Minerals?
Brilliant_brown [7]

Answer: Rock-forming mineral, any mineral that forms igneous, sedimentary, or metamorphic rocks and that typically, or solely, forms as an intimate part of rock-making processes.The minerals that form rock are: feldspar, quartz, amphiboles, micas, olivine, grenade, calcite, pyroxenes

7 0
3 years ago
Unicellular and simple multicellular organisms isolate and eliminate waste materials by:
elixir [45]

Answer:

The correct option is d.

Unicellular and simple multicellular organisms isolate and eliminate waste materials by: <u>moving the wastes into a contractile vacuole and eliminating them through exocytosis.</u>

Explanation:

In all living systems, from prokaryotes to more complex multicellular eukaryotes, the regulation of substance exchange with the inanimate world occurs at the level of the individual cell and is performed by the cell membrane. The cell membrane regulates the passage of materials into and out of the cell, a function that makes it possible for the cell to maintain its structural and functional integrity. This regulation depends on interactions between the membrane and the materials that pass through it. Non-assimilable substances accumulate in vacuoles or fuse with the plasma membrane, and exocytosis expels their contents.

Exocytosis is an inverse process of endocytosis, in which an intracellular vesicle approaches the plasma membrane fusing with it so that the content of said vesicle is poured into the extracellular environment. By exocytosis, the cell can expel the remains of the cell digestion process that are not useful to it and also the secretion products from the Golgi apparatus in the form of secretory vesicles. If too much water enters the cell, it could dilute the cell contents to the point of interfering with biological functions and could eventually break the cell membrane. In the Paramecium, there is a specialized organelle, the contractile vacuole, which prevents this from happening since it collects water from various parts of the cell and pumps it out with rhythmic contractions.

5 0
3 years ago
Which of the following are considered gases
Sunny_sXe [5.5K]

Answer:

Lol

Explanation:

I can't see any option mate. How will I be able to know what to answer

4 0
2 years ago
Which response represents the potential risks of a biohazard exposure to the facial mucous membranes of the eyes, nose, or mouth
Assoli18 [71]

When exposed to the mucous membranes on the face, biohazards can contaminate the eye as well as enter the circulation and stomach.

  • Biological compounds that endanger the health of living things, particularly humans, are referred to as biohazards, sometimes known as biological hazards.
  • Medical trash or samples of microorganisms, viruses, or toxins (from a biological source) that may be harmful to human health are examples of biohazards.
  • Bacteria, viruses, parasites, and molds or fungi are examples of biological health risks.
  • When they come into touch with skin, are eaten, or are inhaled, they can be harmful to human health.
  • They have the potential to spread diseases such parasite infections, tetanus, lung infections, and food poisoning.
  • The method via which a person can come into touch with a dangerous material is referred to as an exposure pathway. There are three primary exposure routes: direct touch, ingestion, and inhalation.

learn more about biohazards here: brainly.com/question/28060388

#SPJ4

3 0
1 year ago
PLEASE HELP ME FAST!
Archy [21]

Answer:Form a hypothesis

Explanation:

8 0
3 years ago
Read 2 more answers
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